HBO's Harry Potter Series Reveals Trio Cast

Author: Sarah Jan 08,2026

HBO has revealed the lead actors cast as Harry Potter, Hermione Granger, and Ron Weasley in its highly anticipated television adaptation.

The streaming giant has selected rising stars Dominic McLaughlin as Harry Potter, Arabella Stanton as Hermione Granger, and Alastair Stout as Ron Weasley for its original Harry Potter series.

Arabella Stanton, Dominic McLaughlin, and Alastair Stout photographed by Aidan Monaghan/HBO.

Series showrunner Francesca Gardiner and director Mark Mylod released a joint statement: "Following an extensive global casting search led by Lucy Bevan and Emily Brockmann, we're thrilled to introduce our perfect trio embodying Harry, Hermione, and Ron.

"Watching these gifted young actors bring their characters to life has been extraordinary, and audiences worldwide are in for something truly magical. We extend our deepest gratitude to the thousands of talented children who auditioned - discovering this new generation of performers has been incredibly rewarding."

Warner Bros. and HBO confirmed six principal cast members earlier this April portraying iconic Hogwarts professors in the upcoming series.

The initial casting announcement featured John Lithgow (Conclave, Dexter), who had previously revealed his role as Albus Dumbledore, alongside performers whose involvement had been widely speculated.

Harry Potter HBO Series: Confirmed Cast and Characters for the Magical Reboot

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Among the notable castings, fans will recognize Nick Frost (Shaun of the Dead, Hot Fuzz) as Rubeus Hagrid and Paapa Essiedu (I May Destroy You, Black Mirror) portraying Severus Snape. The faculty lineup also includes Janet McTeer (Me Before You, The Menu) as Minerva McGonagall, Luke Thallon (The Favourite, Present Laughter) as Quirinus Quirrell, and Paul Whitehouse (The Fast Show, Alice Through the Looking Glass) as Argus Filch.

The characters of Dumbledore, Hagrid, and Snape represent not just pivotal Harry Potter roles but pop culture icons - presenting significant acting challenges that Lithgow acknowledged when discussing his casting earlier this year.

"When the offer came during Sundance Film Festival, I faced a difficult choice knowing this role would likely shape my legacy," he shared with ScreenRant in February.

"Ultimately, the project's creative vision won me over. Though I'll be celebrating my 87th birthday at the wrap party, I'm genuinely excited to join this magical reinterpretation."